Barracuda Email Security Service VS Egress Switch

Trustwave Secure Email Gateway - Trustwave Secure Email Gateway helps protect your email environment against modern threats such as malware, ransomware and phishing, and helps prevent loss of sensitive corporate data.

Cryptshare - Cryptshare is an online security company that gives its facility in securing your emails, uploading large files on cloud platforms to provide you with its compliance.

Mimecast Secure Email Gateway - Prevent targeted email-borne attacks with Mimecast Secure Email Gateway for cloud-based anti-virus and anti-spam protection.

Proxmox Mail Gateway - Protect mail server against spam, viruses and malware with Proxmox Mail Gateway security for businesses, government, education and non-profit organizations.

Appriver - AppRiver is an email and web security company, develops SaaS-based anti-spam, hosted exchange, email encryption and web protection solutions.

Armor - Armor offers cloud security through integrated managed cloud or managed security as a service for public cloud or private cloud.